Loom for weaving



July 30, 1929. s. TURNER ET AL oom FOR WEAVING Filed Sept. 26, 1928 2Sheets-Sheet 1 July 30, 1929. S'.TURNER ET AL LOOM FOR WEAVING 2Shee'ts-Shet 2 Filed Sept. 26, 1928 Patented July 30, 1929.

UNITED STATES PATENT @FFEQE.

SAMUEL TURNER AND THOMAS ,EASTAUGH, OF BGGHDALE, ENGLAND, ASSIGNORS TOSAMUEL TURNER & COMPANY, LIMITED, OF SPOTLAND, RQGHDALE, ENGLAND.

LOOM FOR WEAVING'.

Application filed September 26, 1928, Serial No. 308,393, and in GreatBritain July 2, 1927.

This invention relates to looms for weaving with more particularreference to those which are fitted with automatic weft replenishingmechanism.

A disadvantage of such existing mechanism lies in the fact that theshuttle requires to be very firmly held in the shuttle box whiletransfer is taking place and in consequence a stronger pick andconsiderably more power is required to operate the shuttle than would beneeded for the normal operation of the loom.

According to the present invention, therefore, we discriminate betweenthe normal operation of the loom and its operation dur ing transfer byproviding means for retaining a firmer hold upon the shuttle during themoment of transfer, which means is inoperative during the normal workingof the machine so that the additional holding of the shuttle iseffective only at the moment when such is required, that is, at themoment of transfer.

The accompanying drawings illustrate one mode of carrying out theinvention Figure 1 is a more or less diagrammatic plan showing thebreast beam of a loom and sley with parts mounted and arranged thereonin accordance with the invention;

Figure 2 is a rear elevation of the end of the sley at the transfer endof the loom, and

Figures 3 and 4 are two views on a larger scale showing a detail.

In carrying our invention into effect we may apply our improvements toexisting looms or to looms specially built for the purpose, and suchlooms are provided with the usual accessories incidental to weftreplenishing looms, that is-to say, with some form of magazine (notshown) for the cops and with a transferrer on a hammer shaft for thepurpose of pushing a full cop into the shuttle and simultaneouslyejecting therefrom the empty cop whenever the weft requiresreplenishing.

\Ve also provide the usual weft fork and hammer mechanism (not shown)for bringing into operation the weft replenishing means such as iscommonly employed on automatic weft replenishing looms.

Further, we provide upon the transfer shaft 6' a cam 77. adapted tooperate the swell or other device p for holding the shuttle 5 in theshuttle box at the moment when a .transfer is to be effected, so thatthe shuttle will be more firmly held in position at this moment thanduring the normal operation of the loom so that in this way an easierpick and less power will be required to drive the shuttle than isordinarily needed in connection with weft replenishing looms. Thus, forexample, the cam 'n (which may be loose on the transfer shaft 6 andoperated by a collar a on said shaft) may operate upon thespring-controlled lever. 0 (Figures 1 and 4) which is pivoted at 6 andnormally retained in inoperative position by a spring 7 and which inturn acts upon the swell p to cause the latter to hold the shuttlefirmly in position during transfer, the swell being held in its normalposition by the spring arm 0. In this way, we .are able to employ aneasier pick requiring comparatively little powerduring the normalworking of the loom while during the moment of transfer the shuttle isfirmly held until the transfer is completed whereupon the shuttle isheld only by the swell.

A further improvement in accordance with our invention has for itsobject to prevent damage to the shuttle such as frequently occurs inconnection with ordinary weft replenishing looms owing to the full pirnwhich is being inserted into the shuttle riding upon the side thereof,and in accordance with our invention this fault is obviated by providinga bar 10, baffle, dwarf wall or other like fitting or attachment uponthe front of the shuttle box on the replenishing side of the loom.

It will be understood that the invention is not to be limited to theforegoing details of construction which are given by way of exampleonly, nor is it to be limited to any particular type or construction ofweft replenishing loom to which it is to be applied.

Having now described our invention, what we claim as new and desire tosecure by Letters Patent is 1. In an automatic weft replenishing loom,the combination with the shuttle box of a swell for checking theshuttle, a spring member for holding the swell in a normal checkingposition, a transfer shaft, and means operable upon rotation of thetransfer shaft for moving said swell into engagement with the shuttleduring the transfer operation.

2. A checking mechanism as claimed in claim 1 said means comprising apivoted lever and spring means for normally holding said lever out ofengagement with the swell.

3. A checking mechanism as claimed in claim 1, said means comprising apivoted lever, a cam member on the transfer shaft for moving said leverinto engagement with the swell, and spring means for normally holdingsaid lever out of engagement with 10 the swell.

In testimony whereof We have signed our names to this specification.

SAlWU EL TURNER. THOMAS EASTAUGH.

